[wingnut60]

Money and lack of oversight--indeed, the transition between ground and bridge is more often than not a 'jarring' experience. Usually, the bridge is very solid and stationary--its the ramp compaction leading up to it that sinks/rises with ground conditions.

And the creation of a 'hump' or 'dip' when cutting into a roadway is very hard to avoid--there just isn't enough money in the normal contract for proper compaction. This is why there is almost no new install of pipes/conduits by cut--it is done now by horizontal directional drilling. But, there still is the new housing addition where they put all the streets and curbing in, then come in and cut the street for utilities--????

But, don't worry, I hear they are going to expand Obamacare to cover highway repairs....